Curious. It says it runs RBScript, which is now called XojoScript, so presumably it was made with RealBASIC/Xojo.

From the Xojo EULA:

You agree not to create an application that, as its primary purpose, provides your application's end user with access to XojoScript and/or the ability to directly (or indirectly through a simple wrapper) call functions in the Xojo framework. Such software creation is strictly prohibited and would therefore be a violation of this End User License Agreement. If you have any doubts, contact Xojo, Inc.

What I am doing is suggesting using his demonstration projects
he has made in HyperNext as learning exercises in LiveCode.

Also, if he uses LiveCode Community Edition ALL he would end up with is
an alternative front-end for LiveCode ; while this chap has developed his own "take"
on the HyperCard legacy that differs quite a bit from LiveCode .